JPH0446186U - - Google Patents
Info
- Publication number
- JPH0446186U JPH0446186U JP8785590U JP8785590U JPH0446186U JP H0446186 U JPH0446186 U JP H0446186U JP 8785590 U JP8785590 U JP 8785590U JP 8785590 U JP8785590 U JP 8785590U JP H0446186 U JPH0446186 U JP H0446186U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- directional switching
- piping
- hydraulic
- oil pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図は本考案に係わるシールド掘削機の一実
施例を示す油圧回路図、第２図は従来のシールド
掘削機を示す縦断側面図、第３，４図は同シール
ド掘削機の油圧回路図である。
４……エレクタ旋回油圧モータ、５ａ〜５ｄ…
…シールドジヤツキ、６……オイルポンプ、７ａ
，７ｃ……油圧配管、８……流量調整弁、１７，
１８……方向制御弁。
Fig. 1 is a hydraulic circuit diagram showing an embodiment of a shield excavator according to the present invention, Fig. 2 is a longitudinal side view showing a conventional shield excavator, and Figs. 3 and 4 are hydraulic circuit diagrams of the same shield excavator. It is. 4...Erector swing hydraulic motor, 5a to 5d...
...Shield jack, 6...Oil pump, 7a
, 7c...Hydraulic piping, 8...Flow rate adjustment valve, 17,
18... Directional control valve.
Claims (1)
ルドジヤツキ及びエレクタ旋回油圧モータに延び
た油圧配管の途中に方向切換弁を設け、同方向切
換弁と上記オイルポンプとの間の油圧配管からタ
ンクに延びた油圧配管に方向切換弁と流量調整弁
とを設けたことを特徴とするシールド掘削機。 A directional switching valve is installed in the middle of the hydraulic piping that extends from the oil pump to the shield jack and erector swing hydraulic motor in the shield excavator, and the hydraulic pressure that extends from the hydraulic piping between the directional switching valve and the oil pump to the tank is installed. A shield excavator characterized by having a directional switching valve and a flow rate adjustment valve installed in the piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8785590U JPH0446186U (en) | 1990-08-24 | 1990-08-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8785590U JPH0446186U (en) | 1990-08-24 | 1990-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446186U true JPH0446186U (en) | 1992-04-20 |
Family
ID=31820572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8785590U Pending JPH0446186U (en) | 1990-08-24 | 1990-08-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446186U (en) |
-
1990
- 1990-08-24 JP JP8785590U patent/JPH0446186U/ja active Pending
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